X-Git-Url: http://47.100.26.94:8080/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjni%2Flibuvc%2Fsrc%2Fframe-mjpeg.c;fp=app%2Fsrc%2Fmain%2Fjni%2Flibuvc%2Fsrc%2Fframe-mjpeg.c;h=da275efab9fdee84941d0d3b04fb1c1b9d957646;hb=831cc09829bc6e18d8d0d8bb78063e89ea565ce9;hp=0000000000000000000000000000000000000000;hpb=061580c83656bf358b01a6b78fd22ae9bd497728;p=rtmpclient.git diff --git a/app/src/main/jni/libuvc/src/frame-mjpeg.c b/app/src/main/jni/libuvc/src/frame-mjpeg.c new file mode 100644 index 0000000..da275ef --- /dev/null +++ b/app/src/main/jni/libuvc/src/frame-mjpeg.c @@ -0,0 +1,552 @@ +/********************************************************************* + * add and modified some function to avoid crash + * Copyright (C) 2014-2015 saki@serenegiant All rights reserved. + *********************************************************************/ +/********************************************************************* + * Software License Agreement (BSD License) + * + * Copyright (C) 2014 Robert Xiao + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of the author nor other contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + *********************************************************************/ + +/** + * @defgroup frame Frame processing + */ +#include "libuvc/libuvc.h" +#include "libuvc/libuvc_internal.h" +#include +#include + +extern uvc_error_t uvc_ensure_frame_size(uvc_frame_t *frame, size_t need_bytes); + +struct error_mgr { + struct jpeg_error_mgr super; + jmp_buf jmp; +}; + +static void _error_exit(j_common_ptr dinfo) { + struct error_mgr *myerr = (struct error_mgr *) dinfo->err; +#ifndef NDEBUG +#if (defined(ANDROID) || defined(__ANDROID__)) + char err_msg[1024]; + (*dinfo->err->format_message)(dinfo, err_msg); + err_msg[1023] = 0; + LOGW("err=%s", err_msg); +#else + (*dinfo->err->output_message)(dinfo); +#endif +#endif + longjmp(myerr->jmp, 1); +} + +/* ISO/IEC 10918-1:1993(E) K.3.3. Default Huffman tables used by MJPEG UVC devices + which don't specify a Huffman table in the JPEG stream. */ +static const unsigned char dc_lumi_len[] = { + 0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 }; +static const unsigned char dc_lumi_val[] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; + +static const unsigned char dc_chromi_len[] = { + 0, 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 }; +static const unsigned char dc_chromi_val[] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; + +static const unsigned char ac_lumi_len[] = { + 0, 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d }; +static const unsigned char ac_lumi_val[] = { + 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, + 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, + 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, + 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, + 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, + 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, + 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, + 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, + 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, + 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, + 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, + 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, + 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, + 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, + 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, + 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, + 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, + 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2, + 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, + 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, + 0xf9, 0xfa +}; +static const unsigned char ac_chromi_len[] = { + 0, 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77 }; +static const unsigned char ac_chromi_val[] = { + 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, + 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, + 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, + 0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0, + 0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34, + 0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26, + 0x27, 0x28, 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38, + 0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, + 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, + 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, + 0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, + 0x79, 0x7a, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, + 0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, + 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, + 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, + 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, + 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, + 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, + 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, + 0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, + 0xf9, 0xfa +}; + +#define COPY_HUFF_TABLE(dinfo,tbl,name) do { \ + if (dinfo->tbl == NULL) dinfo->tbl = jpeg_alloc_huff_table((j_common_ptr)dinfo); \ + memcpy(dinfo->tbl->bits, name##_len, sizeof(name##_len)); \ + memset(dinfo->tbl->huffval, 0, sizeof(dinfo->tbl->huffval)); \ + memcpy(dinfo->tbl->huffval, name##_val, sizeof(name##_val)); \ + } while(0) + +static inline void insert_huff_tables(j_decompress_ptr dinfo) { + COPY_HUFF_TABLE(dinfo, dc_huff_tbl_ptrs[0], dc_lumi); + COPY_HUFF_TABLE(dinfo, dc_huff_tbl_ptrs[1], dc_chromi); + COPY_HUFF_TABLE(dinfo, ac_huff_tbl_ptrs[0], ac_lumi); + COPY_HUFF_TABLE(dinfo, ac_huff_tbl_ptrs[1], ac_chromi); +} + +// XXX added to improve the performance of decoding +// maximun reading lines for each call of jpeg_read_scanlines +// when defined this macro, it's value should be common factor +// of all available frame height. +// (1, 2, 4, 5, 6, 8, 10, 12, 20, 40...for 720p&1080p) +#define MAX_READLINE 8 + +#ifndef MAX_READLINE +#define MAX_READLINE 1 +#endif +#if MAX_READLINE < 1 +#undef MAX_READLINE +#define MAX_READLINE 1 +#endif + +/** @brief Convert an MJPEG frame to RGB + * @ingroup frame + * + * @param in MJPEG frame + * @param out RGB frame + */ +uvc_error_t uvc_mjpeg2rgb(uvc_frame_t *in, uvc_frame_t *out) { + struct jpeg_decompress_struct dinfo; + struct error_mgr jerr; + size_t lines_read; + // local copy + uint8_t *data = out->data; + const int out_step = out->step; + + int num_scanlines, i; + lines_read = 0; + unsigned char *buffer[MAX_READLINE]; + + out->actual_bytes = 0; // XXX + if (UNLIKELY(in->frame_format != UVC_FRAME_FORMAT_MJPEG)) + return UVC_ERROR_INVALID_PARAM; + + if (uvc_ensure_frame_size(out, in->width * in->height * 3) < 0) + return UVC_ERROR_NO_MEM; + + out->width = in->width; + out->height = in->height; + out->frame_format = UVC_FRAME_FORMAT_RGB; + out->step = in->width * 3; + out->sequence = in->sequence; + out->capture_time = in->capture_time; + out->source = in->source; + + dinfo.err = jpeg_std_error(&jerr.super); + jerr.super.error_exit = _error_exit; + + if (setjmp(jerr.jmp)) { + goto fail; + } + + jpeg_create_decompress(&dinfo); + jpeg_mem_src(&dinfo, in->data, in->actual_bytes/*in->data_bytes*/); + jpeg_read_header(&dinfo, TRUE); + + if (dinfo.dc_huff_tbl_ptrs[0] == NULL) { + /* This frame is missing the Huffman tables: fill in the standard ones */ + insert_huff_tables(&dinfo); + } + + dinfo.out_color_space = JCS_RGB; + dinfo.dct_method = JDCT_IFAST; + + jpeg_start_decompress(&dinfo); + + if (LIKELY(dinfo.output_height == out->height)) { + for (; dinfo.output_scanline < dinfo.output_height ;) { + buffer[0] = data + (lines_read) * out_step; + for (i = 1; i < MAX_READLINE; i++) + buffer[i] = buffer[i-1] + out_step; + num_scanlines = jpeg_read_scanlines(&dinfo, buffer, MAX_READLINE); + lines_read += num_scanlines; + } + out->actual_bytes = in->width * in->height * 3; // XXX + } + jpeg_finish_decompress(&dinfo); + jpeg_destroy_decompress(&dinfo); + return lines_read == out->height ? UVC_SUCCESS : UVC_ERROR_OTHER; // XXX + +fail: + jpeg_destroy_decompress(&dinfo); + return UVC_ERROR_OTHER+1; +} + +/** @brief Convert an MJPEG frame to BGR + * @ingroup frame + * + * @param in MJPEG frame + * @param out BGR frame + */ +uvc_error_t uvc_mjpeg2bgr(uvc_frame_t *in, uvc_frame_t *out) { + struct jpeg_decompress_struct dinfo; + struct error_mgr jerr; + size_t lines_read; + + int num_scanlines, i; + lines_read = 0; + unsigned char *buffer[MAX_READLINE]; + + out->actual_bytes = 0; // XXX + if (UNLIKELY(in->frame_format != UVC_FRAME_FORMAT_MJPEG)) + return UVC_ERROR_INVALID_PARAM; + + if (uvc_ensure_frame_size(out, in->width * in->height * 3) < 0) + return UVC_ERROR_NO_MEM; + + out->width = in->width; + out->height = in->height; + out->frame_format = UVC_FRAME_FORMAT_BGR; + out->step = in->width * 3; + out->sequence = in->sequence; + out->capture_time = in->capture_time; + out->source = in->source; + + dinfo.err = jpeg_std_error(&jerr.super); + jerr.super.error_exit = _error_exit; + + if (setjmp(jerr.jmp)) { + goto fail; + } + + jpeg_create_decompress(&dinfo); + jpeg_mem_src(&dinfo, in->data, in->actual_bytes/*in->data_bytes*/); + jpeg_read_header(&dinfo, TRUE); + + if (dinfo.dc_huff_tbl_ptrs[0] == NULL) { + /* This frame is missing the Huffman tables: fill in the standard ones */ + insert_huff_tables(&dinfo); + } + + dinfo.out_color_space = JCS_EXT_BGR; + dinfo.dct_method = JDCT_IFAST; + + jpeg_start_decompress(&dinfo); + + // local copy + uint8_t *data = out->data; + const int out_step = out->step; + + if (LIKELY(dinfo.output_height == out->height)) { + for (; dinfo.output_scanline < dinfo.output_height ;) { + buffer[0] = data + (lines_read) * out_step; + for (i = 1; i < MAX_READLINE; i++) + buffer[i] = buffer[i-1] + out_step; + num_scanlines = jpeg_read_scanlines(&dinfo, buffer, MAX_READLINE); + lines_read += num_scanlines; + } + out->actual_bytes = in->width * in->height * 3; // XXX + } + jpeg_finish_decompress(&dinfo); + jpeg_destroy_decompress(&dinfo); + return lines_read == out->height ? UVC_SUCCESS : UVC_ERROR_OTHER; // XXX + +fail: + jpeg_destroy_decompress(&dinfo); + return UVC_ERROR_OTHER+1; +} + +/** @brief Convert an MJPEG frame to RGB565 + * @ingroup frame + * + * @param in MJPEG frame + * @param out RGB frame + */ +uvc_error_t uvc_mjpeg2rgb565(uvc_frame_t *in, uvc_frame_t *out) { + struct jpeg_decompress_struct dinfo; + struct error_mgr jerr; + size_t lines_read; + + int num_scanlines, i; + lines_read = 0; + unsigned char *buffer[MAX_READLINE]; + + out->actual_bytes = 0; // XXX + if (UNLIKELY(in->frame_format != UVC_FRAME_FORMAT_MJPEG)) + return UVC_ERROR_INVALID_PARAM; + + if (uvc_ensure_frame_size(out, in->width * in->height * 2) < 0) + return UVC_ERROR_NO_MEM; + + out->width = in->width; + out->height = in->height; + out->frame_format = UVC_FRAME_FORMAT_RGB565; + out->step = in->width * 2; + out->sequence = in->sequence; + out->capture_time = in->capture_time; + out->source = in->source; + + dinfo.err = jpeg_std_error(&jerr.super); + jerr.super.error_exit = _error_exit; + + if (setjmp(jerr.jmp)) { + goto fail; + } + + jpeg_create_decompress(&dinfo); + jpeg_mem_src(&dinfo, in->data, in->actual_bytes/*in->data_bytes*/); + jpeg_read_header(&dinfo, TRUE); + + if (dinfo.dc_huff_tbl_ptrs[0] == NULL) { + /* This frame is missing the Huffman tables: fill in the standard ones */ + insert_huff_tables(&dinfo); + } + + dinfo.out_color_space = JCS_RGB565; + dinfo.dct_method = JDCT_IFAST; + + jpeg_start_decompress(&dinfo); + + // local copy + uint8_t *data = out->data; + const int out_step = out->step; + + if (LIKELY(dinfo.output_height == out->height)) { + for (; dinfo.output_scanline < dinfo.output_height ;) { + buffer[0] = data + (lines_read) * out_step; + for (i = 1; i < MAX_READLINE; i++) + buffer[i] = buffer[i-1] + out_step; + num_scanlines = jpeg_read_scanlines(&dinfo, buffer, MAX_READLINE); + lines_read += num_scanlines; + } + out->actual_bytes = in->width * in->height * 2; // XXX + } + jpeg_finish_decompress(&dinfo); + jpeg_destroy_decompress(&dinfo); + return lines_read == out->height ? UVC_SUCCESS : UVC_ERROR_OTHER; // XXX + +fail: + jpeg_destroy_decompress(&dinfo); + return UVC_ERROR_OTHER+1; +} + +/** @brief Convert an MJPEG frame to RGBX + * @ingroup frame + * + * @param in MJPEG frame + * @param out RGBX frame + */ +uvc_error_t uvc_mjpeg2rgbx(uvc_frame_t *in, uvc_frame_t *out) { + struct jpeg_decompress_struct dinfo; + struct error_mgr jerr; + size_t lines_read; + // local copy + uint8_t *data = out->data; + const int out_step = out->step; + + int num_scanlines, i; + lines_read = 0; + unsigned char *buffer[MAX_READLINE]; + + out->actual_bytes = 0; // XXX + if (UNLIKELY(in->frame_format != UVC_FRAME_FORMAT_MJPEG)) + return UVC_ERROR_INVALID_PARAM; + + if (uvc_ensure_frame_size(out, in->width * in->height * 4) < 0) + return UVC_ERROR_NO_MEM; + + out->width = in->width; + out->height = in->height; + out->frame_format = UVC_FRAME_FORMAT_RGBX; // XXX + out->step = in->width * 4; + out->sequence = in->sequence; + out->capture_time = in->capture_time; + out->source = in->source; + + dinfo.err = jpeg_std_error(&jerr.super); + jerr.super.error_exit = _error_exit; + + if (setjmp(jerr.jmp)) { + goto fail; + } + + jpeg_create_decompress(&dinfo); + jpeg_mem_src(&dinfo, in->data, in->actual_bytes/*in->data_bytes*/); // XXX + jpeg_read_header(&dinfo, TRUE); + + if (dinfo.dc_huff_tbl_ptrs[0] == NULL) { + /* This frame is missing the Huffman tables: fill in the standard ones */ + insert_huff_tables(&dinfo); + } + + dinfo.out_color_space = JCS_EXT_RGBA; + dinfo.dct_method = JDCT_IFAST; + + jpeg_start_decompress(&dinfo); + + if (LIKELY(dinfo.output_height == out->height)) { + for (; dinfo.output_scanline < dinfo.output_height ;) { + buffer[0] = data + (lines_read) * out_step; + for (i = 1; i < MAX_READLINE; i++) + buffer[i] = buffer[i-1] + out_step; + num_scanlines = jpeg_read_scanlines(&dinfo, buffer, MAX_READLINE); + lines_read += num_scanlines; + } + out->actual_bytes = in->width * in->height * 4; // XXX + } + jpeg_finish_decompress(&dinfo); + jpeg_destroy_decompress(&dinfo); + return lines_read == out->height ? UVC_SUCCESS : UVC_ERROR_OTHER; // XXX + +fail: + jpeg_destroy_decompress(&dinfo); + return UVC_ERROR_OTHER+1; +} + +static inline unsigned char sat(int i) { + return (unsigned char) (i >= 255 ? 255 : (i < 0 ? 0 : i)); +} + +#define YCbCr_YUYV_2(YCbCr, yuyv) \ + { \ + *(yuyv++) = *(YCbCr+0); \ + *(yuyv++) = (*(YCbCr+1) + *(YCbCr+4)) >> 1; \ + *(yuyv++) = *(YCbCr+3); \ + *(yuyv++) = (*(YCbCr+2) + *(YCbCr+5)) >> 1; \ + } + +uvc_error_t uvc_mjpeg2yuyv(uvc_frame_t *in, uvc_frame_t *out) { + + out->actual_bytes = 0; // XXX + if (UNLIKELY(in->frame_format != UVC_FRAME_FORMAT_MJPEG)) + return UVC_ERROR_INVALID_PARAM; + + if (uvc_ensure_frame_size(out, in->width * in->height * 2) < 0) + return UVC_ERROR_NO_MEM; + + size_t lines_read = 0; + int i, j; + int num_scanlines; + register uint8_t *yuyv, *ycbcr; + + out->width = in->width; + out->height = in->height; + out->frame_format = UVC_FRAME_FORMAT_YUYV; + out->step = in->width * 2; + out->sequence = in->sequence; + out->capture_time = in->capture_time; + out->source = in->source; + + struct jpeg_decompress_struct dinfo; + struct error_mgr jerr; + dinfo.err = jpeg_std_error(&jerr.super); + jerr.super.error_exit = _error_exit; + + if (setjmp(jerr.jmp)) { + goto fail; + } + + jpeg_create_decompress(&dinfo); + jpeg_mem_src(&dinfo, in->data, in->actual_bytes/*in->data_bytes*/); // XXX + jpeg_read_header(&dinfo, TRUE); + + if (dinfo.dc_huff_tbl_ptrs[0] == NULL) { + /* This frame is missing the Huffman tables: fill in the standard ones */ + insert_huff_tables(&dinfo); + } + + dinfo.out_color_space = JCS_YCbCr; + dinfo.dct_method = JDCT_IFAST; + + // start decompressor + jpeg_start_decompress(&dinfo); + + // these dinfo.xxx valiables are only valid after jpeg_start_decompress + const int row_stride = dinfo.output_width * dinfo.output_components; + + // allocate buffer + register JSAMPARRAY buffer = (*dinfo.mem->alloc_sarray) + ((j_common_ptr) &dinfo, JPOOL_IMAGE, row_stride, MAX_READLINE); + + // local copy + uint8_t *data = out->data; + const int out_step = out->step; + + if (LIKELY(dinfo.output_height == out->height)) { + for (; dinfo.output_scanline < dinfo.output_height ;) { + // convert lines of mjpeg data to YCbCr + num_scanlines = jpeg_read_scanlines(&dinfo, buffer, MAX_READLINE); + // convert YCbCr to yuyv(YUV422) + for (j = 0; j < num_scanlines; j++) { + yuyv = data + (lines_read + j) * out_step; + ycbcr = buffer[j]; + for (i = 0; i < row_stride; i += 24) { // step by YCbCr x 8 pixels = 3 x 8 bytes + YCbCr_YUYV_2(ycbcr + i, yuyv); + YCbCr_YUYV_2(ycbcr + i + 6, yuyv); + YCbCr_YUYV_2(ycbcr + i + 12, yuyv); + YCbCr_YUYV_2(ycbcr + i + 18, yuyv); + } + } + lines_read += num_scanlines; + } + out->actual_bytes = in->width * in->height * 2; // XXX + } + + jpeg_finish_decompress(&dinfo); + jpeg_destroy_decompress(&dinfo); + return lines_read == out->height ? UVC_SUCCESS : UVC_ERROR_OTHER; + +fail: + jpeg_destroy_decompress(&dinfo); + return lines_read == out->height ? UVC_SUCCESS : UVC_ERROR_OTHER+1; +} +